Packing-vessel



(No Model.) 2

H. o. HUNTER. PACKING VESSEL.

Patented Mar; 7;.1893.

sheets-411m 1.

snnun'n EHUEIILATE TAIETEB N? 7 lvive 71/129 2 (No Model.) 2Sheets-Sheet 2.

H.O.HUNTER. PAC-KING VESSEL.-

No. 492,806. Patented M21127, 1,893.

Nr'rn-D STATES- PATENT OFFICE.

HENRY o. HUNTER, on ALAMEDA, CALIFORNIA.

PACKING-VESSEL.

SPEGIEIGATION forming part of Letters Patent No. 492,806, dated March*7, 1893. Application filed January 17, 1893. Serial No. 458,705. I (Nomodel.) I

" citizen of the United States of America, residing at Alameda, in thecounty of Alameda and State of California, have invented certain new anduseful Improvements in Packing-Ves sels, of which the following is aspecification.

-My invention relates to packing cans of that class used for putting updry substances, such for example as grocery supplies of many kinds. Theprimary requisites'for cans designed forsuch goods are first, theexclusion of air and moisture, and secondly, resistance to the pressureand concussions necessarily incident to handling and transportation.Following there is the matter of cost; of weight; adaptability tolabeling; appearance; greater adaptability to variation in size;security of packing in cases; convenience in filling and opening;facility in manufacture. Further there is another very important pointhad in view in this, my invention, and never so far as I am awareheretofore accomplished. This point relates to the features ofconstruction of the can, whereby its constituent parts may be puttogether in a manner adapted tofulfill all the requirements abovestated, by the packer himself, when the goods are put up, thus combiningthe permanent qualities of a can with the facility in packing of aknockdown or folding box or other temporary and slight envelope. In thesoldered tin can the aforesaid two prime qualities are supplied, but notthe others. To meet all these requirements I have adopted, as the basisof my invention, a body of paper board or equivalent material (in placeof the ordinary sheet metal body) and sheet metal heads permanentlyfixed thereto. Such a can is shown in the United States patent ofSomersNo. 345,931, of July 20, 1886. For the purposes intended, however,the construction shown in said patent, as well as all the other forms ofpaper board cans prior to my invention herein, and known to me, arematerially defective.

My invention consists essentially of a packing can formed of a body ofpaper board or like fibrous material, having a side seaming stripclamping the abutting edges of said body, and metallic heads, havingflanges which clamp the edges of the body.

The particular points of my improvement,

and the differences in structure andresult, in comparison with the priorstate of the art heretofore known to me, are explained in detailhereinafter. Ihave also illustrated my invention in the accompanyingdrawings, in which Figure 1, represents a body blank in plan. Fig. 2,shows in perspective the side seaming strip. Fig. 3, shows the can bodyand the strip in cross section, illustrating the mode of putting theparts together. Fig. 4l, is a like section of the completed seam. Fig.5, shows a cross section ofsthe head before it is fixed upon the body.Fig. 6, shows a central longitudinal section of the complete can. Fig.7, illustrates the packing of the cansin cases for transportation, andFig. 8, is a plan view of the top.

The body A, is arectangu-lar piece of paper I board. I use the termpaper board as including fibrous sheets, whether homogeneous orcomposite, and whether of paper or similar or other fibrous stock. Imake these blanks of an exact size, the width equaling the circumferenceof the complete can, less the thickness of the web of the interposedstrip; of rectangular shape; in length required for the height of thecan; andpreferably with a labeled surface. In making these cansaccording to the method of packing above referred to, that is to say, inthe manner of putting up goods in knock-down boxes or paper bags orpackets, I use the blank having the labeled surface as the label coversthe whole surface, its edges are covered and held by the flanges of theends or heads, and thus a neat finish is secured.

The body of the can is formed by bending the blank into tubular form andbringing the the compression of the strip. Further there is no wet glueto penetrate through the seam,

, justed in place.

which if employed in a can completed as required for this use would passto theinterior and impair the flavor or quality of the contents. Thewetting necessarily accompanying the use of glue is also injuriousto thepaper board. The metal of the side seaming strip is thin and is formedas shown in the cross section in Fig. 2, that is, with the flanges 2, 2,both in the same plane, and at right angles to the plane of the head 3,there being,

between the bead and flanges, and next to the flanges, a web where thetwo thicknesses of tin arein contact. In putting the can body togetherthe edges of the blank are brought to bear on the flanges 2, and againstthe web, and when in this position the bead is flattened down. The sideseam adds nothing appreciable to the thickness of the wall, and brightmetal being used, gives a finished appearance. In the condition intowhich it is ultimately formed, shown in Fig. 3, it also acts as astrengthening strut or rib, in the can. This form of joint, however,requires especially to be held at the ends. If used in connection with aslip joint cover, it might be pressed in or out and away from the flangeaccording to the position of the cover flange, whether inside or out. Itaffords no material resistance at the ends to transverse pressure and isalso weak against a spreading strain. In order to supply the strengthrequired at. this point, I combine therewith the form of end, or headhaving a double flange and groove, as shown in Fig. 5. This head or endD, is formed with a groove 6, between a double flange 4, 5, into whichgroove the edges of the can body fit, as in Fig. 5. The double flange 4,5, is then closed firmly upon the edge of the body and grips the same.This serves to hold the head'upon the body. It also forms a peripheralconnection, and prevents the abutting edges of the body from pullingapart out of the grip of the side seaming strip. At the same time thehead or end thus held to the can body edge, braces the end against anycrushing in or expanding out of the walls. Thus the head or end, -fixedpermanently to the edge of the can body, supplements the side seamingstrip. These two parts have further cooperation. The convenient wayinmaking these cans, is to cut the strip of a length equal to that of thecan body, the strip being thus more easily and accurately ad- Thisbrings the ends of the strip under the head flanges. But the thicknessof the metal and the compression in closing the flanges upon thesomewhat yielding paper material of the can body, leaves the jointpractically no thicker than the other parts of the body, and the doubleflange of the head makes at all points the same joint.

' I thus avoid the tendency to leak when such a double flange is appliedto a lap jointed paper board body, since in any lap joint, there will beholes in each edge of the laps, under the double flange. The headsengage with and hold the ends of the side seaming strip sever the parts.

and thus tend to keep the can throughoutin symmetrical form. In thisform of head or end, the outer face is counter-sunk below the crown ofthe bead formed by the double flange, and I extend the outer flange 5,downward, as shown in Figs. 5 and 6,instead of turning it inward. Thedownward extension is made wide enough to allow, when packed in cases,the head (turned slightly outward) of the adjacent can, to rest upon theflange, as shown in Fig. 7. This prevents the edges of the adj acentcans from damaging each other, as they would if such edges should bearupon the paper board, and also holds the labeled surfaces apart.

It will be understood that both ends of the can are permanently fixed tothe body and that the head has an ordinary orifice and cap. By the wordspermanently fixed, I wish to be understood as referring to aconstruction such as that shown herein, in which the edge of the body ispositively gripped or fixed to theedge of the end, so as notto be freeto move either in or out without rupture at the edge, which woulddislocate and permanently I do not include a slip joint cover.

It will be observed that my can maybe varied in size simply by varyingthe dimensions of the parts, and in this quality differs from the rolledpaper can bodies, which require for each variation in diameter orlength, a different machine.

In respect to the mode of putting up goods I in my improved cans, I saybriefly, (since the method is described and claimed in anotherapplication Serial No. 405,080, filed September 8, 1891,) that theblanks properly labeled are kept in fiat form, easily stored; that theside seam is added and the bottom; then the can is filled moreconveniently than through the cap opening, and the top or head put on,and

this, by simple or ordinary tools, may be done by comparativelyunskilled workmen, quickly and perfectly, in the warehouse where thegoods are put up.

I do not claim the particular form of completed side seaming strip, asIam aware that it is old in other combinations, nor do I claim thegrooved form of the ends or heads, as these are also old; nor do I limitmyself to these particular forms in my combinations.

I do not claim herein either the details or the mode of putting upthesecans, these matters being the subject of other applications now in theUnited States Patent Office.

I do not herein claim the side seam-ing strip, nor the labeled bodyblank, these being shown and claimed in other applications filed by mein the United States Patent Oflice, having the serial numbers,respectively, 447,002 and 447,003.

I claim- .1. A packing can, consisting of a body composed of a sheet ofpaper board or fibrous material having a side seam formed by a metallicstrip clamping the abutting edges of said ro paper board or like fibrousor vegetable material, a side seaming strip which clamps and unites theedges of the body, and extends the entire length, and permanentlyattached ends, engaging with the side seaming strip, substantially asdescribed. 15

In testimony whereof I affix my signature in presence of two witnesses.

HENRY o. HUNTER.

Witnesses:

HENRY E. COOPER, F. L. MIDDLETON.

